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Table 4-3. Topsoil and spoil material analysis comparisons for plant growth <br />• suitability at Trapper Mine (1985-1989), vs 1992 Ashmore pit spoils. <br />Topsoil Spoil 1992 Ashmore <br />Weighed x (1) Weighed x (2) pit x (3) <br />Parameter (4) <br />pH (standard units) 7.24 7.38 7.49 <br />Electripl Conductivity (mmhos/cm) 0.84 1.98 4.43 <br />Calcium Carbonate (%) 0.94 5.67 5.36 <br />Organic Matter (%) 3.80 4.08 2.99 <br />Nitrate 21.79 7.37 11.56 <br />Phosphorus 14.36 1.47 0.59 <br />Potassium 268.71 102.80 118.89 <br />Zinc 1.97 6.56 4.82 <br />Iron 36.69 32.02 29.42 <br />Manganese (Mn) 15.79 11.85 19.09 <br />Copper 2.88 4.80 3.27 <br />Selenium 0.017 0.09 0.06 <br />Calcium (meg/1 in sat ext.) 6.09 13.86 25.51 <br />Magnesium (megll in sat ext.) 2.21 11.85 14.80 <br />Sodium (meg/l in sat ext) 0.48 2.06 19.80 <br />S.A.R. (-) 0.25 0.65 0.76 <br />• % Saturation <br />Texture 42.64 <br />Clayey loam 42.46 <br />Clayey loam 4.49 <br />Clayey loam <br />% Sand 33.55 33.38 42.89 <br />%Silt 34.64 30.71 25.11 <br />% Clay 31.79 35.94 31.78 <br />Mercury (mg/kg) 0.05 0.08 0.02 <br />Flourine 0.14 0.40 0.28 <br />%TotalSulfur 0.03 0.11 0.23 <br />Acid-Base Potential (-) +10.9 +52.43 +46.24 <br />Molybdenum 0.015 0.079 - <br />Boron 0.10 0,35 - <br />K (meg/1 in sat ext.) 0.62 0.50 - <br />(1) A, B, C, D and E pit topsoi11985-1989. <br />(2) B, C, D and E pit overburden 1985-1989. <br />(3) A pit spoils only (1992). <br />(4) ppm unless otherwise denoted. <br />~b?J93 <br />[CAA9_R\92REPT4] <br />J <br />Table 4-3 <br />